US2366264A - Nozzle - Google Patents

Description

Jagg'z. 1945. F, IAMES a 2,366,264 NOZZLE Filed June 4, 1943 ATTOEVE'YS Patented Jan. 2, 1945 Franklin E. James,

Manufacturing Corporation, Longlsland N. Y., a corporation of Delaware Almont, Pa., assigner to Mack City,

Application J une 4, 1943, Serial No. 489,629

'(Cl. 299---138l` 3 Claims.

The present invention relates to nozzles by means of which` fluids may be directed in any desired direction and embodies, more specifically, an` improved form of nozzle having mechanism by means of which the ilow of uid may 4be changed as desired. More particularly, the

invention embodies mechanism by means of i which the flow of fluid through the nozzle may be treated in such fashion as to produce a great quantity of small particles, forming, in eiect, an

artificial fog of suiicient driving or carrying pow- 'er to be directed'aganst the desired objective.

In apparatus for fighting fires adjustable nozzles have hereto-fore been provided, the purpose of which has been to vary the characteristics of the water or fluid directed at the re. Incertain instances it 'is desirable to produce a fog which causes the iire to be blanketed and smothered, and an object of the present invention is to providea nozzle by means of which such a fog may be produced.`

A further object 'of the invention is `to provide a mechanism having adjustable means therein, by means of which the uid flow may be readily controlled to form a fog having the desired properties, the mechanism including means for interrupting the lamellar flow of uid through the nozzle.

Other and further objects of the invention will be apparent as it is described in greater detail in connection with the accompanying drawing, wherein:

Figure 1 is a partial view in section taken longitudinally of a nozzle constructed in accordance with the invention;

Figure 2 is a view in section, taken on line 2--2 of Figure 1;

Figure 3 is a view similar to Figure `1 show- 4ing the position of the adjusting mechanism `to produce a different character of fluid iiow than that shown in Figure 1; and

Figure 4 is a view similar to Figure 1, showing a further adjusted position of the nozzle mechanism.

The form of nozzle chosen to illustrate the incasing 40 which is provided with an outlet aperture 4l and a pair of plugs 42 `mounted upon the shafts 43. Theplugs are formed with eccentric grooves 44 which combine to produce a passage that can be variedin size as well as in position with respect to the axis of the nozzle. For example,` as illustrated inV Figure 1, the plugs 42 are in a position to afford a maximum passage through the nozzle at the axis thereof. As shown in Figure 2, this passage may be of circular cross-section. i

In Figure 3, each of the plugs has been turned through 180 degrees, and the flow of the fluid throughthe nozzle is diverted as indicated by vention and shown in Figures 1 to 4, includes a i rected toward the iire.

the arrows, sol that two streams are `formed which converge in the nozzle outlet 4| and produce a maximum interference to form a fog. The position of the plugsl as shown in Figure 4, produces a modiiiedfluid ow with turbulence due to the pockets formed on the outlet sides of the plugs 42. It will be understood that the nozzle may be` `provided with a suitable sleeve which may be `threaded to permit it tobe secured to a hose i connection and that mechanism may be included to permit orientation of the nozzle casing 4D.

From the foregoing, it Will be seen that a nozzle has been provided having a capacity for maximum` adjustment to produce a stream. of uid having a desired characteristic of simulating a fog, and that the stream may be varied not only to vary the character ofthe fog, but also of the force with which the stream `While the invention has been shown with reference to the specic `form of nozzle illustrated in the accompanyingldrawing, it is not to be limi ited save as deiined in the appended claims. I claim: l

1. A nozzle comprisinga casing formed with a passage for -uid therethrough and semi-cylindrical cavities therein adjacent to oneend of` said passage, a pair of cylindrical plugs rotatably supported in said cavities and having peripheral portions engaging the casing and each other, a groove extending around the major portion of' the periphery of Ieach plug and eccentric thereto, and means for rotating said plugs to permit iiuid to, flow` through said grooves between the plugs or to iiow through said cavities between said fplugs and said casing` and to vary` the flow of fluid therethrough.

2. A nozzle comprising a casing formed with a passage therethrough between theY inlet and. outlet `ends thereof, the outlet end beingformed i with a discharge orifice, rotatable plugs in the `nozzle having their peripheral portions in engagement with the casing and with each other,

`a groove o-f varying depth extending partially around the periphery of each plug, and means to rotate the plugs to vary the character of the `extending around the periphery of and eccentric to each plug, the groove bottom being` tangent to the `periphery of said plug at one point, and means toV rotate the plugs to vary the character of the iiow of fluid through the nozzle.

l FRANKLIN E. JAMES.

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